Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine
Research output: Contribution to journal › Article
Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile
foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine.
These equations were in good agreement with the experimental data.
- seabed scour; tidal current turbine; ocean renewable energy